From: Dave Chinner <david@fromorbit.com>
To: "Linda A. Walsh" <xfs@tlinx.org>
Cc: xfs-oss <xfs@oss.sgi.com>
Subject: Re: xfsaild centisecs /proc wakeup control?
Date: Thu, 9 Oct 2008 07:58:56 +1100 [thread overview]
Message-ID: <20081008205856.GE7342@disturbed> (raw)
In-Reply-To: <48ED0DA9.7070002@tlinx.org>
On Wed, Oct 08, 2008 at 12:44:41PM -0700, Linda A. Walsh wrote:
> I was looking at powertop again recently, and noticed xfsbufd and
> xfsaild at the top of the wakeup list. xfsbufd can be tuned with
> /proc/sys/fs/xfs/xfsbufd_centisecs along with 3 other time-related
> tunables. However, I don't see one for xfsaild. Is that an
> oversight?
No. The xfsaild is currently operating with watchdog functionality
to catch AIL push stalls due to a know problem that this new patch:
http://oss.sgi.com/archives/xfs/2008-10/msg00119.html
fixes.
After this has been included for a while (say a release), I
plan to remove the watchdog feature of the xfsaild so the
once-per-second-per-XFS-filesystem wakeup will go away then.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
prev parent reply other threads:[~2008-10-08 20:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-08 19:44 xfsaild centisecs /proc wakeup control? Linda A. Walsh
2008-10-08 20:45 ` Eric Sandeen
2008-10-09 0:15 ` Linda Walsh
2008-10-08 20:58 ` Dave Chinner [this message]
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